Sock



FIG. 1 is a left side perspective view of a sock of the present invention in a position of use;

FIG. 2 is a right side perspective view of a sock of the present invention in a position of use;

FIG. 3 is a front view of the sock of FIGS. 1 and 2 in a flat position; and,

FIG. 4 is a rear view of the sock of FIGS. 1 and 2 in a flat position.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the sock and form no part of the claimed design. 

CLAIM We claim the ornamental design for a sock, as shown and described. 